Fated to Love the Dragon Again

Someone tried to kill Tang Niannian and she went into the water. Ao Jingyuan, the Dragon Lord, pulled her out, and the night that followed left her pregnant with twins. She kept the daughter and raised her alone. Ao took the son back to the dragon clan. Six years on, the girl is sick, and the only person who can treat her is the father, so Tang comes back to the city with her to find him. The two children look exactly alike, which is how they end up collected by the wrong adults, and the confusion runs on from there. The twins work out who each other are before the grown-ups do and start arranging things so their parents keep ending up in the same room. Tang and Ao warm to each other. The truth about the night six years ago comes within reach several times and slips each time, once because someone walks in, once because neither of them says the plain thing. The children eventually stage it so that all of it comes out at once.